Period.asfreq issue caused(?) by C division rules · Issue #19643 · pandas-dev/pandas (original) (raw)

per = pd.Period('0001-01-01', freq='B')
>>> per + 1
Period('0001-01-02', 'B')
>>> per - 1
Period('0001-01-05', 'B')
>>> per - 4
Period('0001-01-02', 'B')
>>> per - 5
Period('0000-12-25', 'B')